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What kinds of tests do doctors use to rule out conditions when testing for irritable bowel syndrome?

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There are no specific lab tests that can diagnose IBS. Your doctor will see if your symptoms match with the definition of IBS, and he may run tests to rule out conditions such as:

  • Food allergies or intolerances, such as lactose intolerance and poor dietary habits
  • Medications such as high blood pressure drugs, iron, and certain antacids
  • Infection
  • Enzyme deficiencies where the pancreas isn't releasing enough enzymes to properly digest or break down food
  • Inflammatory bowel diseases like ulcerative colitis or Crohn's disease

From: Irritable Bowel Syndrome WebMD Medical Reference

SOURCES: National Digestive Diseases Information Clearinghouse. Irritable Bowel Syndrome Association. FDA.


Reviewed by Minesh Khatri on March 25, 2018

SOURCES: National Digestive Diseases Information Clearinghouse. Irritable Bowel Syndrome Association. FDA.


Reviewed by Minesh Khatri on March 25, 2018

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What kinds of tests do doctors use to determine if someone has irritable bowel syndrome?

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